/Engine/Source/Runtime/Slate/Public/Framework/Application/SlateApplication.h
Deprecated* ForEachUser now provides anFSlateUser& parameter to the lambda instead of an FSlateUser*
void ForEachUser ( [TFunctionRef](API\Runtime\Core\GenericPlatform\TFunctionRef)< void([FSlateUser](API\Runtime\Slate\Framework\Application\FSlateUser) *)> InPredicate, bool bIncludeVirtualUsers )